Which device circulates warm liquid through a pad to provide dry heat?

The device that circulates warm liquid through a pad to provide dry heat is the aquathermia pad. This pad works by using water, which is heated and then circulated through channels within the pad. The circulation of warm liquid ensures an even distribution of heat across the surface of the pad, providing effective and consistent warmth to the targeted area of the body.

Aquathermia pads are particularly useful in therapeutic settings for alleviating pain or muscle stiffness and are beneficial for conditions such as arthritis or injuries. In contrast, other options may provide heat but do not circulate liquid in the same manner. For instance, a heating pad typically relies on electric coils to generate heat, while a cooler pad would serve an entirely different purpose, often to provide cold therapy. Heat wraps may deliver heat but also do not involve the circulation of liquid, making aquathermia pads distinct in their mechanism and benefits.